Ensure that during shutdown Koa returns correctly with a 503
npm install koa-graceful-shutdown

Ensure that during shutdown Koa returns correctly with a HTTP 503 Service Unavailable. Based off express-graceful-shutdown with the middleware adapted for Koa.
``js
const http = require('http');
const Koa = require('koa');
const shutdown = require('koa-graceful-shutdown');
const app = new Koa();
const server = http.createServer(app.callback());
app.use(shutdown(server));
app.use(ctx => {
ctx.status = 200;
ctx.body = { foo: 'bar' };
});
server.listen(0, 'localhost', () => {
const { address, port } = server.address();
console.log('Listening on http://%s:%d', address, port);
});
`
``
npm install koa-graceful-shutdown --save
``
shutdown(server, opts) => function(ctx, next)
| Argument | Description |
| ---- | ---- |
| server | http.server |opts
| | Optional options |opts.logger
| | A logger that provides info, warn and error methods, defaults to console |opts.forceTimeout
| | Milliseconds to wait for server.close() to finish, defaults to 30000 |
- Original credits to Paul Serby for express-graceful-shutdown`.
- Any questions or suggestions please open an issue.